Study on the Slow-release Attractant for Monochamus alternatus and Its Attractive Effect
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摘要: 松褐天牛缓释型引诱剂由引诱活性制剂和具强吸附力的缓释基质复合配制,其组分和配比为2种单萜烯∶ 乙醛∶ 丙酮∶ 乙醇∶ 微晶碳素∶ 膨润土=0.20∶ 0.06∶ 0.06∶ 0.08∶ 0.47∶ 0.13,引诱活性制剂和缓释基质质量分别占缓释型引诱剂总质量的40%和60%。缓释型引诱剂能控制活性成分释放速度,使引诱活性成分较平稳地持续发挥引诱效果。缓释型引诱剂引诱活性成分日均释放量为0.9 g,仅为原型引诱剂日均释放量的25.0%,可引诱以松褐天牛成虫为主的29种林木蛀干害虫,是一种广谱性的缓释型引诱剂。该引诱剂引诱松褐天牛成虫的引诱活性与原型引诱剂基本一致,其林间有效作用半径和诱获率分别为70 m和43.8%。缓释型引诱剂可准确监测松褐天牛等松林蛀干害虫成虫种群数量动态,有效诱杀松材线虫病的媒介昆虫和多种蛀干害虫。Abstract: The slow-release attractant for Monochamus alternatus were prepared by the attractive active agent and the slow releasing matrix with high absorbability, which was mainly composed of 2 monoterpene, acetaldehyde, acetone, alcohol, microcrystalline carbon, bentonite and the rate was 0.20∶ 0.06∶ 0.06∶ 0.08∶ 0.47∶ 0.13. The weight of attractive active agent and slow releasing matrix accounted for 40% and 60% of the total weight of the slow-release attractant, respectively. The slow-release attractant can control the release rates of the active composition, and made the attractive effects steadily and sustainable. The daily mean volatilization rate of the attractive active composition of the slow-release attractant was 0.9 g, which was only 25.0% of the prototype attractant, and could attract 29 species notorious trunk borer, and was a broad-spectrum slow-release attractant. The attractive activity of this attractant to M. alternates was similar with prototype attractant and the effective attractive radius and trap ratio was 70 m and 43.8% in forest, respectively. This slow-release attractant could monitor accurately the adult population dynamics of the main pine stem-borers such as M. alternatus, and trapped and killed effectively the insects, which carried the Bursaphelenchus xylophilus.
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